Simplify 9 square root of 245

$9 \sqrt{245}$

Rewrite $245$ as $7^{2} \cdot 5$ .

Factor $49$ out of $245$ .

$9 \sqrt{49 (5)}$

Rewrite $49$ as $7^{2}$ .

$9 \sqrt{7^{2} \cdot 5}$

$9 \sqrt{7^{2} \cdot 5}$

Pull terms out from under the radical.

$9 (7 \sqrt{5})$

Multiply $7$ by $9$ .

$63 \sqrt{5}$

The result can be shown in multiple forms.

Exact Form:

$63 \sqrt{5}$

Decimal Form:

$140.87228258 \dots$

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